Hoist attachment for tractors



Get. 13, 1925. v 155mm H. 5. MYERQE HOIST ATTACHMENT FOR TRACTORS FiledNov. 30. 1921 3 Sheets-Sheet 1 Get. 13

H. 5. MYERS HOIST ATTACHMENT FOR TRACTORS Filed Nov, 30 1921 3Sheets-Sheet 2 5. MYERS HOIST ATTACHMENT FOR TRACTORS Filed Nov. 30.l-.. 1 3 Sheets-Sheet 3' 39 use and names on. 13, 1925.

err can- HARRY 'S. MYERS, F VAN, PENNSYLVANIA.

HOIS'I' ATTACHMENT FOR TRAQTQRS.

Application fileliNovember 30,1921.

To all whom it many concern:

Be it known that I, HARRY S. Mrrns, a citizen of the United States,residing at Van, in the county of Venango and State of Pennsyl 'ania',have invented certain new and useful Improvements in Hoist- Attachmentsfor Tractor-sot which the following is a specification.

This invention relates to a hoisting machine, and more particularly tosuch a machine designed for ready attachment to a standard form oftractor. The special adaptation shown and described for the purposes ofdisclosure of the principles of the invention isa hoisting mechanismadapted to he attached to a tractor at a point in rear of the workingparts thereof and between the tractive wheels; and securing power forits operation from the transmis sion mechanism of the tractor.

The invention has for its object the pro vision of a hoisting mechanismreadily attachahle to a tractor 01 standard cmistruc- 'tion and whichmay he carried, by the tractor without interference with any of theordinary duties imposed upon the same. A further object is the selectionofa mounting for such a hoisting attachment to the tractor where it willhe of maximum wherein the hoistin c mechanism may he driven from thetn'a-nsmission mechanism of the tractor and controlled at. a convenimitposition at the rearot' the tractor. Another object of the invention isthe provision of such an attachment to a tractor in a position wherebyit may he used as a hoist for the traitor itself in order that thetractor may he placednpon hillsides which could-not he reached in the ordinary travel of the tractor.

A further object of the invention is the improvement of the details ofconstruction of such hoist attachn'tcntwhereby it can he readilyattached in a convenient position at the rear of the tractor. drivenfrom the transmission mechanism of the tractor, con trolled from therearot' the tractor, and the parts located out of the way in the ondinary uses to which tractors are placed.

' Other objects and advantages of the invention will hereinafterappearin the followin; (.lescription and the novel features thereot' wiii heparticularly pointed out in the appended claims.

lake reference nun'ierals refer to like parts throughout the severalSerial No. 518,980.

drawings, in which- "ignre l. is a side elevation of my hoistingattachment with one of the tractor wheels removed,

Figure is a similar View posite side of the machine,

Figure 3, is a rear elevation of the winch attachnient,

Fignre 4 is a plan showing thehoist attachment mounted upon thedifferential housing; of the tractor, by 1 Figure 5 is a se tional viewthe line of Figute direction of the arrow, Figure 6 is a similarsectional view taken upon the line 6'6 of Figure 3,

from the optaken upon 3 loosing" 1n the fi ures of the Figure 7 is aperspective of the frame of the hoisting attachment, and

Figure 8 is a detail View showing the construction of the drum.

It will he understood that the invention may he varied in its details ofconstruction and that the specific embodiment illustrat- "ed anddescribed herein is only indicative thereof; the specific embodiment,however, is one which has been found to be practical in its constructionand operation.

'lhc hoisting; attachment comprises a framework which has been shown inper-. spective in Figure '7 and which is adapted to be attached to therear portion of a tractor body constituting the housing for theditl'erential gear and drive axles. In this dramcworl; are mounted twoshafts which will be designated, respectively, the drumsha't't and thedrive shaft. Associated with the drive shaft is the driving connectionwith the tractor, and associated with the drum shaft are the drum, itsgear and brake. Means are provided for engaging the gears of the' hoist,for applying the brake and for controllin the engine clutch and throttlefrom the rear of the tractor. These parts will be specifically describedand their functions pointed out, after which a "recital of theirconjoint operation will be given.

Referring to Figure 7, the shown ascomprising a base composed of theangle mimic and 11, and the cross angle bars 12 and 13, suitably rivetedor bolted together, as indicated at 14. In the portions 15 and 16 of thecross angle bars- 12 and 13 are termed curved recesses 17,

hoist frame is draw bar casing ingattachmn placed in position so that 45in Figure 6, being attachdat its ends, to the rails and'11, as canbestbe seen 1 in Figure 2. The purpose of this guard .is

to protect the gear wheel from the accumulation of dirt or other foreignmatter in the 70 I transportation of the machine, which would greatlyinterfere with its eflicient operation and perhaps cause injury to themachine in the apertures 19 and will be in register .tions of thetractor. than those" removed are then employedito 1 10 in place.

with corresponding openings in these por- Slightly longer bolts attachthe angle bars 12 and 13 and the .rail

Again referring to Figure 7, it will be seen that ateach end ofthe rails10 and 11 are attached bearing-carryin members desi nated bythenume'rals 21 an 22, which are raced, respectively, by the struts 23and 24. Ithas been founddesirable to further 1 gear teeth and theintegral flange 39, which,

I A rkwhic brace the-member 21 by the strap 25 while the strap iron 26is associated with the member 22 and brace 24 fbr a purpose to be here-.inafterset forth.

Upon the vertical sections of the members 21 and 22 are bolted thebearings 27 and28 designed to support the drum shaft .while upon. thehorizontal sections of these mem here are bolted the bearings 29 and 30for a drive shaft, bolts being 19.1 ely-used to attach the otherelements of t e frame together, as will be apparent from an inspe'c tionof the several figures of the drawings. The bearings 29 and 30 areprovided with apertured ears 31 and 32 for the mounting of. a slidingshift'rodto be hereinafterreferred to, while the bearing 30is inaddition provided with a pair of lugs 33 with apertures therein toconstitute a support for a rotating brake control lever, as willhereinafter appear. 1

' Referring now to Figures 2, 4 and 8, the numerals34 designates thedrum shaft to which are keyed the shouldered hubs carryingdisks 35 and36 and supporting the drum tube 37, these par s being clamped togetherby the rods, as shown, and constituting the drum or spool forwindings-the hoistin cable. To the disk 35 is attached the skeleton gear38 comprising the rim bearing the flange is se'cured'by .the bolts 40 tothe disk 35. The shape of this flange 'is readily understood from aninspection of Figure 2:

Tothe attached the brake rim or drum 41 izaviag a flange similar to thaton" the skeleton gear, and the bolts 42 are the means employed forsecising the flan e to the disk. At any desir point on t e drum may betemporarilyclamped a twopartdlsk 37 tolim'it the winding space.

;ard' 43 is provided for the gear rim, is extend starting.

The numeral 44 designates the brake band,

which, 'as shown in Figure 5, is'attached at one end to the rail 11.After passing around the brake rim it is attached to the tighteningmeans therefor in a manner to be hereinafter described. v

The drive shaft of the hoist is designated by the numeral47 and mountedfor rotation in the-bearings 29 and 30. This drive shaft has slidablykeyed .to it the pinion 48, which is capable of being shifted in amanner to be set forth to be either in mesh with the gear 38, as shownin Figures 2 and 6 or out of mesh therewith as shown in Figures 3 and 4.I

The shaft is extended as-at 47, it has keyed'to it a s rocket 49protected by a guard 50' sup orted from'the frame of the hoist by suitee legs51 and 52.

In the ears 31 and 32 is mounted a shiftable rod 53 which 'is moved bymani ulation of the lever-54, which is attache to the frame of'the hoistthrough theinstrumentalityof the U-bolt 55 and to the rod 53b?- means ofthe block and screw connection 56.

Referring now to Figure 3,-it will be understood that a shifting of thelever 51 to the left will cause the rod to be correspondingl shifted.V'I-he yoke 57 held to the rod wi 1 cause the pinion 48 and its,

integral collar to be brought into mesh with the-gear 38 It will benoted that the rod carries at its 0 er end (see Figures) 9.

cotterpinbS designed to limit its movement n onedirectlon; vA hole.59fis provided in the rod 53 at the opposite side'of'the ear 31,

the purpose of which is to 'permit the-removal of the cotter pin fromitsposition atonesideof theonto the other, when it Wlll act' to preventtheshifting of the rod 53 to cause intermeshing of the pinion 48 andgear 38. This is particularly desirable in transporting the tractor fromplace to place when the hoistis not being used and thejolting of thetractor over roughground is liable to cause the hoist -gears to becomeengaged with the possible in ury to the machine asa'r'esult.

It will be noted-from Figures li and 5 that the lugs 33 rotatabl supporta short shaft 60, which at one en is provided Jvith an o crating handle61 and at its opposite end as mounted rigidl and eccentrically thereon adisk 62, around the brakeband is passed. Upon a move;

and humped as shown at inent of the lever 61 to the right-in Figurewhere 90 which the freeend I between the clutch and a substitute fortherein.

does not therefore interfere near/34m 5 the e .-centrically mounted diskwill cause the band 44 to grlp the rim of the brake drum and therebybrake the hoisting mechanism.

There remains to be explained how the power is taken "from the tractortransmis sion gearing. Sprocket (i3 15 provided as the driving pulleycommon in tractor structures receiving power from thetransmissionmechanism of the tractor the gear shift. This sprocket is continuouslyrotatingas long as the engine is running and the clutch -1s engaged.Upon a release of the clutch, l10W eveiytliis sprocket will stop. I havepro vided means for driving the tus from this sprocket and forcontrolling from the rear of the machine the engagement anddisengagement of the-clutch. A sprocket chain 64 passing overthe'sprockets 62) and -19 is the means selected for transmitting powerfrom the engine to the hoist.

'In order to stop the operation of the hoist at any time recourse is hadto the clutch control shown in Figure 1 of the drawing. This comprises ashaft 65 supported at one end in the bearing aperture in the leg 51 andatits other 66 formed in the strap UT. shaft (55 is bent to form 68, andat itsforward end it is bent to provide a crank 69. This crank operatesa pedal engaging pull. 70 which comprises an eye 71, mounted upon theend of :the crank between washers and held thereon by a cotter pin, anda hook end 72 engaging over the clutch control pedal. The strap (37 isattached by means of bolts to the transmission case. of the tractor. Itwill be seen that a manipulation of the handle (it will result end in aneye At its rear the in a depression of the clutch pedal and the releaseof the clutch and that a continued turning of the handle 68 will resultin a' carrying of the crank beyond ter when the clutchwill bedefinitely. I

Before proceeding to a (lUSCI'lptlOll of the operation of the machine,it is thought. that a recital oi some of the uses to which the hoist oithe present invention may be placed. will aid in an understanding of theprincipies involved. In the oil region of Pennsylvania, where thisinvention is being manufactured and sold. the wells require periodicbailing to remove the accumulation of water The casings of these wellsmust also be removed at times' The wellsjare often located upon thesides of hills where it practically impossible to place hoisting itsdead cenheld released 1nmachinery except at great cape diture of etlort.The hoisting attachment f the present invention satisfies in a specialmanner the demands 111 this field.

It is light and materially with the transportation of a tractor fromplace desired to hoisting apparavention the an operating handle dutiesrequired of tractors. The maximum width of drum is available for windingpurposes in case it is desired to bail a well, while the cfiective Widthof the drum may be greatly diminished by the placing thereon ofthe'removable two-part disk or parti tion 37. as when it is desired touse the hoist for easing drawing. The location of the hoist at the rearof the tractor in a relatively low-down position enables itto he carriedWithout interfering with the transportation of the tractor, as well'astoact as a hoistfor the tractor itself when itis reach points on thehillsides to which the tractor cannot be transported in the usualmanner. It is only necessary in that event to play out a suflici lengthof cable from the drum andv thereof to an anchor abovetl nation and thenuse the ,hoist as a means for drawing the tractor b ackivards up thesteep incline to that point. With equal facility the tractormaybelowered down an incline. The provision of extension throttle andclutch controls to the rear of the hoist and the presence thereof brakeand gear shifts give the hoist attaclnnent of this in equivalentcharacter of a stationary n'iaclnne when the tractor has been tied down.It will be noted that the several extension controls may be easilydisconnected and that provision has been made for the locking of thegear 48 out of iilcsh with gear wheel 38, making safe the transportationof the tractor with the hoist attached.

The following resume of the conjoint operation of the parts will now besutiicient to a complete understanding of the principles' oi theinvention: The hoist having been attached to the tractor and the machinetransported to its point of use at a well, the tractor is tied down inany convenient manner. The tractor gear shift is placed in neutralposition. The engine is started uith the gear 48 out ()lidIlGSll' withthe wheel 2-38. \Vith the clutch engaged the sprocket (323 through the,chain (54 will drive the sprocket to which in turn rotates the driveshaft 47 with the pinion 48. Upon a depression of the extensionclutch'levcr (38 the clutch is released stopping the drive of thetransn'iission members (33,. 64, 49, 47 and48. In this condition thepinion 48 maybe shifted by r 54 into mesh with the gear 38. lponire-engagement .ot' the clutch power 'willbe .transn'iitted throughmembers 63,

38h) the drum 3? for cable, it

e theend point of desti-' may Le rotated manually. either event/ by saidbelt-pulley shaft, means operably the unwinding of the drum is under thecon-, trol of the brake, as is usual in hoisting machinery.

' Patent is:

5 said drumf.

Having described my invention, what I- claim as new-and desire to secureby Letters 1. In a tractor-of the farm type having an automotiveorganization which in cludes a, motor, propelling wheels,transmissionrge ar ing, also a differential gear, transmlttmg power fromsaid motor to said wheels, a winding drum carried by the housing of thedifferential gear of said gearing, and gearing other than saidtransmission. gearing, arranged to transmit power from the motor to '2.p In a tractor of the farm type having 'an automotive organization wh chincludes a motor, propellingwheels, transmission gearing which comprisesa differential gear trainsmitting power from. said motor to said.

wheels, also' abelt-pulley shaft driven by said motor; a winding drumcarried by the housing of said differential gear, driving gearing otherthan the automotive trans- *mission gearing arranged to transmit power,fromsard belt-pulley shaft to said drum, means rendering said drivingg'earin crative or inoperative at wi1l,,a'nd a fir .for said drumarranged tocontrol the reverse action thereof. I I

- 3. In a tractor of the farm type having an motor, propellin wheels,transmission gear: ing whiclrinclu' esa differential. gear transmitting' power from said motor to: said wheels, also a belt pulley shaftdriven by said 'mobor; anorg initiation cooperating with the foregoingcomprising, in combination', a'dr'um shaft revolubly carried by thehousing of said differential gear, a winding drum operably carried bysaid drum-shaft, speed-reducing, driving gearing transmitting' ower:from said belt-pulley 'shaft'to.

said rum-shaft, and means rendering said driving gearing'operative orinoperative at will.. 1 j m 1 c 1. In a tractor of the farm type havingan automotive organization which includes a motor, propelling wheels,transmission gearin' transmitting power from said motor to said wheels,a carrying structure for said organization, also a belt-pulley shaftdriven by said motor; an organization cooperating 'with the foregoin andcomprising in combination, a drum-s aft revolubly carried by saidcarrying structure and positioned rear I wardly of said'wheels, a windindrum and a gear fixed to said .drum-sha t, a brakemembe-r carried bysaid drum, a pinion shaft revol'ubly carried by said structure, a pin;'ion.-on said pinion shaft for -d1;iving said, gear, a transmissionmember earned by saidopake automotive organization which includes a'Iforthe differential gear and drive axles, and

gearing other than said transmission gearing arranged to transmit powerfrom the motor to the drum.

6. In a tractor of the farm type having an automotive organization whichincludes. a 7

motor, propelling wheels, transmission gear? ing, a differential gearand drive axles trans-- .mitting power from the motor to said wheels, awinding drum mounted on the rear portion of the tractor bodycomprisinothe housing for the differential gear and drive axles, a powershaft capable of being driven from the motor independently of saidtransmission gearing, and driving connections between the power shaftand drum.

automotive organization which includes a motor, propelling wheels,transmission gearing, a differential gear and drive axles transmittingpower from the motor to said wheels, a power shaft on said tractordriven from the motor, -'a winding-drum carried by the 7. In a tractorof the farm 'type. having an i rear portion of the tractor body housingthe differential gear and drive axles, gearing interposed betweenthewinding drum and the power shaft for rotating said drum, and aplurality -ofpower controls 'for said drum 8.- In combinationa tractorhaving its rear body port1on in t he form of a relatively large housingcomprising a central ortion inclosv inclosing the differential gear ofthe tractor i and conical sections inclosmg the drive axles and boltedto said central portion, and a winding drum having a-framewith bracketelements'secured to the rear portion of the tractor by the boltssecuring the central and conical sections together.

" In a hoist attachment for tractors-of t ing thediflerential gear oii t'e' ;tractor* and conical sections inclosing the drive axles and.

torand to the said having a differential housingat the .p l g I Q reartereof, a frame comprising a pair of v pinion shafi'aja, transm ss onmember rails carrying the operative elements" or- Y 139 operable fromthe same proximate position,

motor,

hoistyu'nd vertical cross angle bars adapted to straddle thedifferential housing of the tractor and be secured thereto by theboltsof saidhousing. 7

11. In hoist attachment for tractors of the type having a differentialhoiusing and drew-bar cap at the rear thereof, a frame comprising a pairof rails carrying the operative elements of the hoist and a pair ofangle cross bars, the cross bars and lower rail being recessed torespectively fit the sides of the differential housing and the bottom ofthe draw-bar cap and being adapted to be secured to the tractor frame bythe bolts securing these tractor elements in place. a

12. In a tractor of the farm type having an automotive organizationwhich includes a motor, propelling wheels, transmission gearing, adifierential gear and drive axles transmitting power from the 'motor tosaid wheels, a frame supported on the rear portion of the tractor bodycomprising the housing for the differential gear and drive axles, awinding drum mounted on said frame, and. gearing other than saidtransmission gearing arranged to transmit power from the motor to thedrum.

13. In a tractor of the farm type having an automotive organizationwhich includes a propelling wheels, transmission gearing, a differentialgear' and drive axles transmitting power from the motor to said wheels,a frame supported on the rear portion of the tractor body cv nrisi'ngthe housing for the diii'erential gear and drive axles, a winding drumand a gear reducing conntershaft mounted onsaid frame, and gearing otherthan said trans-' mission gearing arranged to transmit power from themotor to the counter-shaft to drive said drum.

14. In a tractor of the farm type having an automotive organizationwhich includes a motor, propelling wheels, transmission gear ing, adili'erential gear and drive axles transmit-ting power from the motor tosaid wheels, a power shaft on said tractor driven from the motor, a.tractor body whose roar comprises the diilcrential and drive .axlchousing, a reducing countershaft carried by the differential housing, awinding drum mounted on the tractor body in proximity to and driven bysaid countershaft, and a driving connection between said countershaftand said power shaft.

15. In a tractor of the farm type having an automotive organizationwhich includes a motor, propelling wheels, transmission gearing, adifferential gear and drive axles transmitting power from the motor tosaid wheel, a .power shaft on said tractor driven from the motor, atractor body whose rear comprises the differential and drive axlehousings, a gear reducing countershaft carried by the rear of saidtractor body, a winding drum mounted on the tractor body in proximity toand driven by said countershaft, and a driving connection between saidcounter-shaft and said power shaft.

In testimony whereof I aflix my signature.

. HARRY S. MYERS.

